Swipe left on the blog you’d like to delete or leave and then pick “Delete” or “Leave [blogname]”. A window will appear asking if you want to remove your blog.
Open the Settings app on your phone. Tap Accounts in the left-hand column. If you don’t see “Accounts,” select Users & accounts instead. Select the account you wish to delete. Remove the account. If this is the only Google Account on your phone, for security reasons, you’ll need to enter your phone’s
To delete your account on Tumblr, go to the settings page. You won’t be able to remove your account via the Tumblr mobile app. Only the Tumblr website allows you to delete your account. When you cancel your membership, all of your active blogs on Tumblr are deleted as well.
Go to tumblr.com/signin and log into your account using your login credentials. … In the gray area, click the “Delete This Blog” link.
Every Tumblr user is assigned a primary blog that will always be linked to his or her email address, which cannot be removed. The primary blog can’t be deleted unless all of the user’s other blogs are destroyed. Secondary blogs may be deleted, but Tumblr has hidden and disguised the Erase option in the “Members” control panel.